Edward Jenner (Vaccination Pioneer)

Edward Jenner was an English physician known as the pioneer of vaccination. In 1796, he discovered that milkmaids who had contracted cowpox, a less severe disease, did not get smallpox, a deadly illness. Jenner experimented by injecting a boy with material from a cowpox sore and later exposed him to smallpox, finding that the boy did not get sick. This led to the development of the first vaccine, which has saved countless lives and laid the foundation for modern immunology, greatly reducing the prevalence of infectious diseases worldwide. Jenner’s work established vaccination as a crucial public health tool.